Shelter



FIG. 1 is a perspective view of a shelter;

FIG. 2 is a front view of the shelter of FIG. 1 ;

FIG. 3 is a rear view of the shelter of FIG. 1 ;

FIG. 4 is a left-side view of the shelter of FIG. 1 ;

FIG. 5 is a right-side view of the shelter of FIG. 1 ;

FIG. 6 is a top view of the shelter of FIG. 1 ; and,

FIG. 7 is a bottom view of the shelter of FIG. 1 .

The broken lines represent structure or features of the shelter that form no part of the claimed design. 

CLAIM The ornamental design for a shelter, as shown and described. 